Power Requirements; Environmental Specs - HP 9122D Service Manual

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GENERAL
I!'FOR~IATION
1-2
Double-sided
Single-sided
Capacity
Bytes/Sector
256
512
1024
Sectors/Track
16
9
5
Tracks
80
80
80
Data Tr,acks
~\vailable
( - - - -
154
------>
Access Time
Track-to-Track
Seek
Maximum Track-to-Track
See
k
(8
a
t
r
a c
k
~i
)
Average Track-to-Track
Maximum Rotational Latency
Average Rotational Latency
Spindle Motor on time
Maximum Data Access Time
(Seek plus Latency
plus Motor on time)
Average Data Access Time
15 ms/tri!:ck,
1242 ms
447 ms
100 ms
50 ms
400 ms
1.742
s
497 ms
NOTE
256
16
70
66
plus 42 ms settling
The HP 9122 disc drives spare four complete tracks and
reserve two tracks for system use with double sided
formats, and spare four tracks in single sided format.
Power Requirements
86-125 volts or 195-250 volts @ 67 watts RMS (94 voltamps)
50-60 Hertz
Fuse
lA, 250 for 115V setting
.5A, 250 for 230V setting
Operating Limits
Temperature
HumiditY'
Altitude'
Non-operating Limits
(Storage and Transit)
Temperature
Altitude
Environmental Specs
10 to 40°C
(50 to 104°F)
20 to
80r.
with maximum wet bulb
temperature (non-condensing) not
toe x c e e d 29 ° C (85
0
F) .
o
to 4572 m (0 to 15,000
tt)
-40 to 60°C (-40 to 140°F)
-304 to 15240 m (-1000 to 50,000 tt)

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